Human Head Louse vs Ochraceum Black Fly
Side-by-side species comparison
| Attribute | Human Head Louse | Ochraceum Black Fly |
|---|---|---|
| Scientific Name | Pediculus humanus capitis | Simulium ochraceum |
| Order | Phthiraptera | Diptera |
| Family | Pediculidae | Simuliidae |
| Size | 2-3 mm | 1.5-3 mm |
| Habitat | Underground | Mountains |
| Diet | Blood Feeders | Blood Feeders |
| Regions | Europe, Asia, Africa, North America, South America, Oceania | Mexico, Guatemala, southern Mexico, Central America |
| Conservation | Least Concern | Least Concern |
Human Head Louse
An obligate ectoparasite of the human scalp that feeds on blood several times per day. It spreads through direct head-to-head contact.
Did You Know?
Head lice have co-evolved with humans for millions of years, and DNA analysis of lice has helped trace ancient human migration patterns.
Ochraceum Black Fly
A small orangish-brown black fly that is the principal vector of onchocerciasis in Central America and southern Mexico. It breeds in small, fast-running mountain streams. Biting activity peaks in the early morning and late afternoon in coffee-growing regions.
Did You Know?
The Americas are close to eliminating onchocerciasis thanks to mass ivermectin distribution targeting this vector's parasite.